I really honestly think you could do it in Florida. I think the original film is a masterpiece, so if it sounds at all like I'm negative about it, I'm not. The original film uses a lot of misdirection and "spice", if you will. You go over plain farmland, but you don't care because you're looking at the hot air balloons. Nothing's really going on in the orange grove, but swoosh! you almost hit your feet on those trees! The river is pretty, but not awe-inspiring... your attention is grabbed by the rafters.
I made a scene list of the ride film, and I'll try to suggest a Florida equivalent. Not that it has to be what I suggest or in that order, but I just want to establish the idea that you could do a film like the original in Florida. For example, I think flying over St. Augustine at sunrise first would be very symbolic because it's so old. I'll just slot that in somewhere where there's no obvious equivalent, though.
Clouds........................Clouds
Golden Gate Bridge.........Sunshine Skyway Bridge
River Rafting................Big Shoals
Farm/Hot Air Balloons......Farm/Hot Air Balloons
Rocky Ocean Shore..........Rocky Ocean Shore
Skiing/Tahoe.................St. Augustine
Yosemite/Hang Gliders......South Beach
Palm Springs Golf Course....Random Pretty Golf Course
Orange Grove................Orange Grove
Cowboys/Blue Angels........Kennedy Space Center (I checked; they still launch rockets, just not shuttles)
Navy in San Diego............Navy in Jacksonville
Surfers at Sunset.............Surfers at Sunset
110 Freeway at Night........Overseas Highway/Key West
Disneyland.....................Follow Monorail from Epcot to MK for fireworks
I think you could stack that film up pretty well against the original. Duplicating the "magic" is very tough, of course, but I think there's a really good framework for a Florida film. That's even leaving out ideas others have had or my idea to do a fly-by on the Dream or Fantasy.